<% content_for :adminpage do %>
    #top-menu {display: none}
    #nav {display: none}
    #right-header {display: none}
    #weasel-coffee {display: none}
<% end %>
<% content_for :admin do %>
    <div id="admin-page">
      <div id="admin-title">
        <h1>Administrator Page</h1>
      </div>
      <div id="admin-loginbox">
        <table>
          <tr>
            <td>
              <label>
                <input type="text" placeholder="Username" name="user_name_ad">
              </label>
            </td>
          </tr>
          <tr>
            <td><label>
              <input type="password" placeholder="Password" name="password_ad">
            </label>
            </td>
          </tr>
          <tr>
            <td>
              <a href="#" class="hyperlink-detail">Đăng Nhập</a>
            </td>
          </tr>
        </table>
      </div>
    </div>
<% end %>